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发明名称
METHODS OF LOWERING AND RAISING LOADS BY MEANS OF A JACK ASSEMBLY AND LIFTING ELEMENT
摘要
申请公布号
CA1011722(A)
申请公布日期
1977.06.07
申请号
CA19760266230
申请日期
1976.11.22
申请人
AHLGREN, NILS H.
发明人
AHLGREN, NILS H.
分类号
主分类号
代理机构
代理人
主权项
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